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The constant term in the expansion of (3...

The constant term in the expansion of `(3x^3+2x^2-5/x^5)^10` is

A

`(10!)/(6! 3!)(3)^2(2)^5(-5)^3`

B

`(10!)/(7! 3!)(3)^2(-5)^3`

C

`(10!)/(6! 3!)(3)(2)^6(-5)^3`

D

`(10!)/(2!2!6!)(3)^2(2)^6(5)^2`

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